THE CONDUCTION MECHANISM AND DEFECT STRUCTURE OF ACCEPTOR-DOPED AND DONOR-DOPED SRTIO3

被引：33

作者：

INOUE, T

SEKI, N

KAMIMAE, J

EGUCHI, K

ARAI, H

机构：

[1] Department of Materials Science and Technology, Graduate School of Engineering Sciences, Kyushu University 39, Fukuoka, 816

来源：

SOLID STATE IONICS | 1991年 / 48卷 / 3-4期

关键词：

D O I：

10.1016/0167-2738(91)90044-C

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The conductivities and Seebeck coefficients of polycrystalline Sr(1-y)La(y)Ti(1-x)Mg(x)O3(y = 0, 0.05, x = 0-0.1) were measured as a function of oxygen partial pressure and temperature. When Mg2+ ions are doped as acceptor for Ti3+, the concentration of oxygen vacancy increased and p-type semiconductivity was promoted. However, when La3+ ions are doped as donor for Sr2+, the concentration of oxygen vacancy decreased and n-type semiconduction was dominant. The carrier concentration changed with P(O2), while the mobility was unaffected.

引用

页码：283 / 288

页数：6

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